1. Introduction:
Quality is of prime importance for every industry or
business, to get increased sales and better name amongst Consumers & fellow
Companies. Generally Quality control Standards for export are set strictly, as
this business is also holds the prestige of the country, whose company is doing
the export. As far as Garment quality is concern, it is depend upon the
characteristics of the material used. The present paper was aimed at
investigating the different technical parameters of the cotton fabric such as
cotton crepe, poplin and voile.
2. Apparatus used:
CRE machine and Elmendorf Tearing strength Tester, Measuring
Scale
3. Testing procedure:
3.1 Tensile Strength
This test is used for determining the breaking strength and
elongation of most textile fabrics. Here we are taking the reference of ISO
13934-1(Strip test).The Specimen should be 100 1 mm wide and long enough to secure gauge length of 100 mm. Draw a line
parallel to long dimension and located 37 1
mm in from the edge of one side of the specimen. Clamp the specimen with the
line drawn adjacent to the side of the upper and lower jaws so that the same
length of fabric extending beyond the jaw at each end. Distance between clamps
- 100 mm. Clamping area of the fabric shall be 25 mm x 25 mm within accuracy
of 1 mm. And M/c speed - 50 5 mm/min. Effective width of each test specimen
shall be 50 0.5 mm after removal of threads
equally from both sides and length shall be long enough to allow a gauge length
of 200 mm. If elongation at maximum force is more than 75 % then gauge length
can be reduced to 100mm. If raveling is not possible than cut fabric of width
50 mm. Then start the test and record the breaking strength of the fabric
3.2 Tearing Strength
This test method determines the tear force required to
propagate a single-rip tear of defined length from a cut in the fabric when a
sudden force is applied. The force required to continue a slit previously cut
in a fabric is determined by measuring the work done in tearing the fabric
through a fixed distance. The apparatus consists of a pendulum carrying a clamp
which is in alignment with a fixed clamp when the pendulum is in raised,
starting position with potential maximum energy... The tear force is computed
from scale reading and pendulum capacity. Specimens in warp direction and 5 in
weft direction shall be cut. No two test specimen shall contain the same warp
and weft threads, and no specimen shall be cut within 150 mm of the edge of the
fabric.
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The
author is associated with SGS India Pvt. Ltd, Gurgaon, Haryana
